Cellulosic Material Patents (Class 106/136.1)
- Cork or peat (Class 106/137.2)
- With nonproteinaceous noncarbohydrate hetero ring compound (Class 106/137.3)
- With nonproteinaceous phosphorus or boron compound or organic compound containing silicon (Class 106/137.4)
- With natural resin or derivative (Class 106/137.5)
- With nonproteinaceous organic compound containing sulfur or nitrogen (Class 106/137.6)
- With nonproteinaceous organic compound containing oxygen except wax (Class 106/137.7)